The individual components of the vasti muscle group and the rectus femoris were clamped and subsequently loaded based on the muscle cross-sectional area proportions (111N, 98N, and 67N for rectus femoris/vastus intermedius, vastus lateralis, and vastus medialis, respectively).
The definition of life is controversial. The current definition is that organisms maintain homeostasis, are composed of cells, undergo metabolism, can grow, adapt to their environment, respond to stimuli, and reproduce.
More in Healthy Aging. Longevity is defined as long life or a great duration of life.. The term comes from the Latin word longaevitÄs. In this word, you can see how the words longus (long) and aevum (age) combine into a concept that means an individual who lives a long time.